Door locking mechanism



April 13, 1937. a. WALKER I DOOR LOCKING MECHANISM 3 Sheets -Sheet 1 Filed Jan. 6, 1933 Z u m as .M. U NZ 3 U pm p i 3 B. WALKER noon LOCKING MECHAN-ISM Filed Jan e, 1953 s Sheets-Sheet 2 INVENTOR 37 0045 an 1U BY :2 a ATTO NEY5 Y I B. WALKER DOOR LOCKING MECHANISM 'April 13, 1937.

3 Sheets-Sheet 3 Filed Jan. 6, 1933 I'NVENTOR Broo 5's W42 2513/".

A BY 'j ATTORNEYS.

1 Patented Apr. 13,

UNITED STATES PATENT OFFICE noon meme Brooks Walker, Piedmont, Calif. Application January c.1933, Serial No. 650,399

3 Claims. -(c1. 292-83)" My invention relates to door locks and particularlyto structure for simultaneously locking a plurality of doors from a point interior and exure through the manipulation of a suitable handle.

, control to prevent entrance from the exterior thereof when. the closure is occupied. While the closure herein shown is a vehicle body, it is to be understood that the invention is not limited to bodies but applies to rooms and other of closures.

Accordingly, the main objects of my'invention are: to provide interconnecting means across the top of a vehicle body between the roof and the interior top finishing element adjacent to' locking bolts or fingers which extend into the roof rails above the door to be manipulated to extend into apertures in the door; to provide a structure roof rails of the vehicle so as to engage the latch-- ing ends of the doors irrespective of whether the doors are hinged together on the central pillar or having -one hinge and one latch thereon; to

provide a lock cylinder inthe side quarter panel 5 and roof rail which when turned actuates' the interconnected structure and bolts to simultaneously move the bolts into the top sill of the door;

. to provide mechanism for interconnecting the lock cylinder with the interconnected structure and bolts to provide a mechanical advantage to the system to permit a small force applied to'the key to actuate the structure; to provide spring biased bolts for projecting through the roof rail 5 into the doors which are thereby disconnectedof bolts to engage all; of the doors through a longitudinal push or pull movement on an interconnecting element; to lock the doors throughthe engagement of the door dovetail to prevent 55 it from being moved'outwardly from the receiving fingers; to provide a key in' a door having means thereon for operating the elements for intercepting the door dovetails; to provide a shaft I on the handle of a lock which is constructed in such manner as to permit a counterclockwise turning movement through 90 degrees to operate a movable element into a position to intercept the door dovetails; to provide a lock on a door independent of the handle, whichmay be utilized for actuating mechanism for looking all of the doors at the same time; to provide'means interconnected with the inechanism which may operate the mechanism to lock the doors interiorly of the vehicle; and, in general, to provide a simple and practical construction for locking all of-the doors of a closure at the same time by means independent of latch bolts, which is simple in construction, economical of manufacture and positive in operation.

Other objects and features oi. novelty of my invention will be either specifically pointed out or will become apparent when referring, for, a better understanding of my invention, to the following description, taken in conjunction with the accompanying drawings, wherein:

Figure 1 is a broken view in perspective, of locking structure for a plurality of doors of a vehicle which embody features of my invention,- which may be spaced from each other along the v Fig. 2 is a perspective view of a structure, v lar to that shown in Fig. 1, illustrating a odifled form thereof,

Fig. 3 is a perspective view of a further form of locking means for a plurality of doors of a vehicle,

Fig. 4 is a P p ctive view of another modified form of construction which may be employed for locking all four doors of a vehicle, I

Fig. 5 is a perspective view of a further modifled form of construction for looking all four doors of a vehicle through the longitudinal movement of the locking chamber,

Fig.. 6' is an enlarged sectional structure illustrated in Fig. 5,

Fi 7 is a broken sectional view of a vehicle body and doors illustrating locking means for the doors which embodies a further modified form of my invention,

view of the Fig. 8.is an enlarged sectional view of a rack I and bolt construction which may be employed in connection with the structure illustrated in Fig. 'i,

Fig. 9 is a broken sectional view of door locking in which embodies a further modie fled form of my invention,

Fig. 10 is a sectional view -'of "the, structure illustrated in Fig. 9, taken on the line l9--l8 thereof,

Fig. 11 is an enlarged sectional view of the structure illustrated in Fig. 9, taken on the line llll thereof, I

Fig. 12 is a broken sectional view of a modified form of the structure illustrated in Figs. 9, 10, and 11,

Fig. 13 is an enlarged sectional view of a portion of the actuating shaft illustrated in Fig. 12,

Fig. 14 is a broken sectional view of a lock and mechanism embodying a further modified form of construction for locking doors simultaneously, and

Fig. 15 is ,a broken view, in elevation, of structure employed in combination with that illustrated in Fig. 14, for locking the doors on the opposite side of the vehicle.

In Fig. 1, I have illustrated a vehicle having side top rails 20, front doors 2| and rear doors 22. The doors are supported on pillars 23 by hinges 24 so that the latching edges of the doors are disposed a greater distance apart, being adjacent to the front and rear pillars, respectively. Since the latching mechanism-is to be so mounted as to engage the latching edges of the door, the locking bolts 25 must be disposed a maximum distance apart as illustrated in Fig. 1. The bolts 25 of the structure illustrated in Fig. 1; are the ends of rods 26 which are bent in arcuate shape about the center of the rods 26 which are supported on brackets 21. The central part of the rods are bowed upward at 28 to provide clearance on the interior of the vehicle, and are employed as crank arms to be interconnected by a link 29 which is mounted on the rods and retained thereon against lateral movement by suitable means,

such'as cotter pins 3|, and causes the rods to be operated in unison. The rods project, in retracted position, through apertures 32 in the rail to substantially the under surfaceof the rail, and are disposed directly above an aperture 33 in the door in which the ends of the bolts 25 project,

when the mechanism is operated.

For operating the mechanism, I have provided a locking cylinder 34 which is mounted in the rail above the door as more clearly shown in Fig. 2. The cylinderextends through the roof rail and is attached to an arm 35 pivoted to a link 36 which is in engagement through a pin and slot connection withthe extension 31 which supports the bolt. 25. The portion 31 is moved downwardly when the key is turned to locked position in the cylinder. The movement of the one portion 31 causes the one rod 26 to turn and therefore the other rod 26 to be actuated through cranks 28 and the link 29 to have all of the bolts move downwardly to project into the aper ..tures 33 in the upper doorv sills totherebylock all of the doors. A handle 38 is mounted-on the shaft 26 having a certain amount of play therewith through a pin and slot connection so that the key may be operated to its full operating position without operating the handle to its locked position and prevents the handle from being employed for actuating the bolts 25 to open position. However, the handle 38 is available when operated from the inside, to move the fingers 25 into locked position and to be retained therein by the passing of the handle 38 over the locking pin 3 In this manner, the simple movement of ehandle 38 beyond the pin 39 causes all the doors to be locked from the interior thereof and ingress to the vehicle from the exterior thereof is entirely prevented. The handle is also in a position out of reach of children who may be riding in the vehicle and who may unlatch the doors by operating the door handles and will illustrated the extension 3l-of the rod as being disconnected from bolts 43 which have a spring 44 thereon for retrieving the bolts 43 employed in place of the connected fingers 25. When one of the bolts 43 is jammed due to a collision, to such a degree as to prevent its ordinary operation by a key or handle 38 the mechanism could still be operated to permit other of the doors to be unlocked.

In Fig. 2, I have illustrated a modified form of construction employing the bolts 43 and springs 44 wherein a cross 'rod 45 is utilized, preferably of square section, having crank arms 46 thereon which are flanged at 41 for engagement with the bolts 43. The rod 45 is mounted on suitable brackets 48 to permit the turning of the rod 45 therein. For operating the rod, I provide a disc 49 having a square hole 5| in ofiset center rela-' tion which is engaged'by a rod 52 mounted in extension of the lock cylinder 34. A link 53 has an aperture which encompasses the disc 49 and l a slot which engages a pin 54 provided on one of the crank arms 46 to permit the operation of the handle 38 mounted loosely on the rod in substantially the same manner as the handle 38 is operated on the rod 26 in the structure illustrated in Fig. 1.

A second set of brackets 48 are provided adjacent to the edge of two other doors of the closure,

having crank arms 46 thereon'with the flanges 41 thereof engaging the bolts 43. The second set of crank arms 46 on each side of the door are connected to the first-mentioned crank arms by suitable links 55.. The operation of the key in the lock cylinder 34 causes the cylinder extension 52 to be turned, which turning causes the link 53 to be drawn downwardly in view of the eccentric connection of the extension 52 with the disc 49. This causes the crank arm 46 to move down- Wardly and rotate the rod 45 which in turn rotates the crank arms on the opposite side of the ,closure. In this manner, the turning of the key and the rotation of the rod 52 causes all of the crank arms 46 to be rotated in a clockwise direction to -move the bolts-43 into the apertures 33 in the doors to securely lock the doors in place.

This construction is novel in view of the fact that the links 55 may be chosen of any length so that the bolts 43 may be'disposed at any "lengths apart to engage the latching edges of the pinions 58 interconnected by a shaft 59 which is turned directly by a key in the cylinder lock 6|.

Apertures 62 are provided in the latching edges,

of the door to receive the racks when the shaft 59 is rotated to cause a downward movement of the racks. A handle 38 is provided on the shaft 7 on the interior of the vehicle for rotating the shaft 58 and when the handle is disposed over the pin 39, the doors are retained in locked position. A single spring 83 is provided about the shaft 59 having one end secured to the shaft and the other end retained by a bracket 54 which supports the shaft, to retrieve the shaft and retain the racks in retrieved position when the structure is moved to door unlocked position.

In Fig. 4, I have shown a further modified form of my invention wherein bolts 85 are mounted in the side rails 28 of a vehicle top rail, having slots 68 in the upper end thereof for receiving cross bars 61 which are retained by a suitable means, such as pins 58. Springs 58 are employed for retrieving the bolts 55 and the 61 to unlocked position while suitable cams II, mounted in aligned relation on a rotatable shaft lliare uti-' lized for controlling the position of the bars an therefore the bolts.

The shaft 12 is mounted on the top rails by with a pin 39 to retain a handle 38 in locked position in the hereinabove specified manner. A

suitable link 14 is employed to engage the disc 48 or other means 'hereinabove described and not shown in the figure, to be actuated by rotation of the key in a. lock cylinder to rotate the shaft I2 and the cams for moving the interconnecting bars downwardly to carry the bolts 85 therewith to look all of the doors simultaneously.

In Fig. 5, I have illustrated a further form of my invention wherein a lock cylinder I5 is employed in the top side quarter panel of the vearm .of which has hicle body having anextending rod I8 thereon in engagement with a flange II on the bell crank I8. 4 One armof the bell crank ll is provided with a flange I5 for engaging a bolt 43, the other aperture for receiving a rod or cable 8|. The rod or cable-8| extends across the top of the vehicle body to engage an arm .82

of a bell crank having the other arm 83 thereof provided with a flange I8 for a .bolt 43 on the opposite side of the body. The bell crank 18 is secured to a shaft 85 which is pivoted at each end on brackets 86 and has secured thereto an arm 84 on the opposite end thereof provided with'a flange I9 for enga g a bolt 43.

v A handle 88 is mounted with a predetermined amount of play to the shaft 85 to be employed for actuatingthe shait85 in a clockwise direc tion'when pulled outwardly from the side of the body. A pin 39 is provided to receive and retain the handle in outward position to cause the bolts 43 to be held in door locked position. On the opposite side of the vehicle the bell crank 83 is secured to a shaft 88, the ends of which are supported in brackets 86 and which likewise has an arm 81 secured to the opposite end thereof and provided with a flange I8 for engagement with a bolt 43. Through the'inward movement of the lock cylinder I5 and the turning of the key thereafter to retain the cylinder inward through .through the shafts 85 and 88 to thereby have all of the doors locked simultaneously. The play in the connection between: the handle 88 and the shaft prevents the engagement of the handle with the pin 38 and eliminates. the possibility of employingthehandletoreleasethebellcrankand arms and also prevents the lockingof the handle so that the operation of the lock cylinder with the key would not unlock the doors.

In Fig. 'I, I have shown a modified form of the construction illustrated in Fig. 5 wherein the pushing of the lock cylinder pushes directly upon an offset rod 84 which is provided with oppositely disposed racks 85. The racks are in rack bolts 38 for manipulating the. bolts downwardly into engagement with the doors to .lock two or four doors simultaneously. Suitable spring means 88 are employed for aiding in the retrieving of the bolts and retaining them in unlocked position. A suitable handle I8I is provided connected to the rod 88 to be moved lat-" erally across the vehicle to enable thelocking of the vehicle from the interior thereof. Suitable holding means 8 is provided for retaining the handle inposition away from the side of the vehicle .to the bolts in locked position.

The bolts 88may beconstructed in accordance with the-showing of Fig. 8 wherein a locking bolt I88 is biased by a spring 44 in the manner hereinabove described to have the bolt retrievable by the spring independent of the position of the rack 88. In this construction, should the bolt I88 jam due to a collision and the crushing of one of the doors, the rod 54 and its associated structure couldreadily be operated to withdraw the bolts from the other doors not so jammed to permit the operation of the doors even though one should be jammed so badly, as to prevent the retrieving of the bolt. j Referring to 9, I have illustrated a further modified form of my invention wherein the door 'dovetail I8! is employed for retaining the doors in locked position. In this construction, a'plate or slidable element I83 is mounted on the center pillar 23 of the door or on the front and rear pillars thereof, depending upon how the doors are hinged, and is connected through a rod I85 to suitable actuating mechanism we mounted at V the top of thec ar.. Itis to be understood that the plate I83, rod I85 and mechanism I 88 is provided on both sides of the vehicle interconnected 34 or handle 38 hereinabove described in regard to Fig. 2. Upon the turning of the key in, the lock cylinder 34, the rod I85 is moved downwardly to move the plate I83 into the path of movement of the doordovetail I82 to securely lock the doors against opening through the positioning of theplate I83 in the path of outward movement of the door dovetail I82. Suitable by a rod 45. Arms I81 of the actuating-mechanism I88 are actuated by-a lever 53 and lock' springs I89 maybe provided on the rod I85 for aiding in the retrieving of the rod and plate and for retaining the dovetail clamping finger is modified to support the plate against lateral movement by suitable flanges 4 which e gages shoulders II5 provided on the plate.

- Referringto Fig. 12, 1 have shown a further the lock with curved surfaces I2I and with flat portions I22, as illustrated in Fig. 13. The tumbell crank arm I46 is-securely attached to the shaft I44 on the opposite side of the car, one arm of which is in engagement with a bolt 43, the other arm of which is pivotally connected by a link I" to a similar bell crank arm I46 which operates a second bolt 43 in the manner hereinabove described.

In this construction, through the turning of the key in a clockwise direction the shaft I32 is rotated which rotates the cam I33 in a clockwise direction and causes the end I39 and the lever I36 recess in the pillar 20 to lock the door containing bier bar I23 is provided with arcuat'e edges I24- to permit the-counter-clockwise movement of the shaft II9 substantially 90 degrees. However, the clockwise movement-of the shaft- II9 from the position illustrated in Fig. 13 causes the tumbler bar I23 to rotate against a projecting arm I25 provided on the latch II8 to cause the latch .to be retrieved from door-latched position.

On the square portion of the shaft I have'pro- 'vided an arm I26 which isrigidly connected thereto and which is out of the plane of the latch bar II8 to permit a clockwise movement thereof 90 degrees from the position illustrated. When the shaft is operated clockwise 90 degrees from the position illustrated, the latch H8 is moved rearwardiy out of engagement with the recess in the pillar to permit the door to be opened as is the common practice. When, however. the

shaft is moved 90 degrees counter-clockwise, from the position shown, the arm I26 engages the plate H6 to cause it to move outwardly and upwardly in View of its support on the pin I2'I by means of the slot I28 which are disposed at an angle to the door. The projecting end I29'of the plate I I6 engages the pin III and thereafter, due to its upward movement, causes the plate I 03 to move upwardly to intercept the path of movement of the door. dovetails.

The fiat surface I3I provided on the arm. I26, retains the plate in raised position and permits the handle to, be locked preferably by disconnecting the handle entirely from the shaft II9 which is the common practice to prevent the handle from being'forced and to have the handle freely turnabie relative to the shaft. Through the operation of the one plate I03 and therod I05 the arm I0I is actuated which in turn actuates a similar arm I0'I, rod I05 and plate I03 on the opposite side of the vehicle through a suitable cross rod 45 ashereinbefore described, to lock two or more doors of the vehicle through the single manipulation of the handle. In Figs. 14 and '15, I have shown a furthe modified form of my invention wherein the lock cylinder is mounted in a door (not shown) independently of the handle, having a square extend-' ing shaft I32 thereon which is secured to a cam I33. The cam' operates a lever I34 which is pivoted at I35 to the lock plate and which in turn operates a lever I36, likewise pivoted at I3'I to the lock plate, in view of the interconnecting pivot I38. As a result of the clockwise movement of the cam1I33, the lever I38 has its projecting flange I39 moved upwardly to move a rod I4I 'into engagement with a plunger I42 provided in the car rail 20, to operate a rocker bar I43 which causes the extending arm thereof to operate a bolt 43 into an aperture 33 in the adjacent door. The rocker bar is rigidly attached to a shaft I44 which extends across the top of the car and which is mounted in suitable brackets I45; 'A

the locking mechanism. The movement of the plunger I42 upwardly causes the bolt 43 on the adjacent door to be actuated and through the rotation of the shaft I44 to operate crank arms I46 on the opposite side of the car to cause similar bolts 43 to be moved into engagement with the latch edges of the doors. A suitable handle I48 is pivoted between the panels of the door and ex-.

tend through a plate I49 in. the window ledge. The handle is connected through links I5I', I52, I53 and arm I 54 to the lever I34. When the handle I48 is pushed forwardly the arm I54 is caused to rotate about the pin I35 to thereby move the end of the lever downwardly out of engagement with the cam I33 to cause the upward movement of the flange I39 of the lever I36 to operate the door engaging boltsas above described. A suitable detent I55 is provided in the plate I49 for receiving and retaining the handle I48 in door locked position. A slot is provided in the link I53 which prevents the movement of the handle I48 when the cam I33 is actuated.

It will be noted that in all instances when the doors are locked from the exterior thereof, the handle provided for manipulating the lock from the interior of the door is ineffective for causing the release of the look so that once the doors are locked against entrance from the exterior thereof, even thougha window should be broken, the interior actuating handle could not be manipulated to cause the doors to be unlockedf This is due to the loose motion connection provided between the interior handle and the exterior locking means and which also prevents the manipulation of the interior handle through the exterior means which might cause it to engage its latch and prevent the unlocking of the doors from the exterior of the vehicle when'the exterior lock is manipulated to unlocked position.

-While I have described. and illustrated several embodiments of my invention, it will be apparent to those skilled in the art that various changes,

- omissions, additions and substitutions may be 'I claim asmy invention:

1. In a vehiclebody having pairs of doors disposed'on opposite sides thereof, said doors having apertures in the top rail remote from the hinged side, means above said doors projectable in said apertures, biasing means for retrieving said projectable means from said apertures, and means disconnected from said projectabie .means for moving said projectable means intosaid apertures.

2. :In a vehicle body having pairs of doors hinged at opposite sides thereof, said doors havingapertures in the top rail remote from the hinged side, bolts above said doors projectable into said apertures, springs for retrieving said 'bolts from said apertures and fingers above said door for moving said bolts. into said apertures against the bias of said springs and movable therefrom a distance sufiicient to permit the biasing means for retrieving said projectabl'e means from said apertures, and means for moving .said projectable means into said apertures, said moving means being movable independent of said projectable means.

BROOKS WALKER.

Patent No. 2,077,135 Granted April 13.1937 BROOKS WALKER Th9 almw vnlitlvd patent was extendec'l July 24. 195 mulm tho pmvi sions of the avt of June 30. 1950, for 6 years and 214 days from ihP vxpiration of the m'lginal tvrm thereof.

Commissioner of Patents. 

